Sun Microsystems StorEdge D240 is a 2U Rack Mount unit with redundant power supplies. The D240 has two Media Bays for Tape or DVD-ROM and two drive bays for SCSI disks. The Media Bays can also be used for disk drives if the drives are installed in a 340-6476 Media Tray Sled. This configuration includes 2 x 18.2GB 10000 RPM SCSI disks, DVD-ROM, & 4MM DDS-4 DAT tape drive. Includes 3' SCSI cable.